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3 cijfers X 3 cijfers met hulp [3]

3 cijfers X 3 cijfers met hulp [3]

 
2 5 6
8 8 9 ×
9 × 6 =
54
9 × 50 =
450
9 × 200 =
1800
80 × 6 =
480
80 × 50 =
4000
80 × 200 =
16000
800 × 6 =
4800
800 × 50 =
40000
800 × 200 =
+ 160000
227584